<!DOCTYPE html>
<html>
  <head>
    <meta charset="UTF-8" />
    <title>Build-in Object</title>
  </head>

  <body>
    <script src="build_in_object.js"></script>
    <script src="./array_object.js"></script>
    <script src="./string_object.js"></script>
    <script src="./number_object.js"></script>
    <!-- <script src="./time_object.js"></script> -->
  </body>
</html>
